Sirenko 1998 : 1 Sirenko 2001 : 45 Schwabe 2006a : 19 Saito, 2001 : 111 L. vietnamensis Deep-sea chitons from sunken wood in the West Pacific (Mollusca: Polyplacophora: Lepidopleurida): taxonomy, distribution, and seven new species Sigwart, Julia D. Sirenko, Boris I. Zootaxa 2012 3195 1 38 3TM29 Sirenko, 1998 Sirenko 1998 [151,637,434,460] Polyplacophora Leptochitonidae Leptochiton Animalia Lepidopleurida 12 13 Mollusca species vietnamensis     Leptochiton vietnamensis  Sirenko 1998: 1, figs 1–3;  Sirenko 2001: 45–47, figs 31–47, 168–171; 2004: 112, 115, table 1;  Schwabe 2006a: 19–22, pl. 1 figs A–D, pl. 2 figs A–F; Sigwart et al.2011: 567, 569, table 3, fig. 2; Yearsley & Sigwart 2011: table 1.  +  Leptochiton longispinus  Saito, 2001: 111–114, text figs 6, 7, pl. 1 figs 4–6; Sirenko 2004: table 1 [as junior synonym of  L. vietnamensis].   Material examined. 22 specimensin 3 lots from the Philippines, 15 specimensin 11 lots from the Solomon Islands.   Distribution.The total range of this species is from 21.7° S– 6.95° Nby 97.37°–168° E, reported from South ChinaSea ( 700 m: Sirenko 1998), Andaman Sea ( 651 m: Schwabe 2006a), New Caledonia( 270–800 m: Sirenko 2001), 2323 ( 522–677 m: Sirenko 2001; this study), and now also the Philippines( 989–1764 m) and Solomon Islands( 989–1313 m). Found living and feeding on sunken terrestrial plant remains.